471967421 has 2 divisors, whose sum is σ = 471967422. Its totient is φ = 471967420.

The previous prime is 471967417. The next prime is 471967423. The reversal of 471967421 is 124769174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316341796 + 155625625 = 17786^2 + 12475^2 .

It is a cyclic number.

It is not a de Polignac number, because 471967421 - 2² = 471967417 is a prime.

Together with 471967423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471967423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235983710 + 235983711.

It is an arithmetic number, because the mean of its divisors is an integer number (235983711).

Almost surely, 2^471967421 is an apocalyptic number.

It is an amenable number.

471967421 is a deficient number, since it is larger than the sum of its proper divisors (1).

471967421 is an equidigital number, since it uses as much as digits as its factorization.

471967421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 471967421 is about 21724.8111844499. The cubic root of 471967421 is about 778.5813689305.

The spelling of 471967421 in words is "four hundred seventy-one million, nine hundred sixty-seven thousand, four hundred twenty-one".